Circular loom.



No. 636,800. f Patentedflov. [4, I899.

' C. HERGLD &. R. RICHARDS.

CIRCULAR LOOM.

' (Applicgtion filed June 7, 1899.) (No Model.) 4 Sheets$heet l.

Patented Nov. l4, I899. C. HERDLD 81. B. RICHARDS.

CIRCULAR LOUM.

(Application filed June '1, 1899.) (No Model.)

LI 0 c 762 a a?" f a "1:; 4% l B 5- @Mmmew an M RM'RM 4 Sheets-Sheet 4 I12, a side view of the shuttle.

NITED STATES CARL HEROLD' AND RICHARD RICHARDS, 0F BRUNN,AUSTRIA-HUNGARY.

CIRCULAR Loo ivi.

SPECIFICATION formingpart of Letters Patent N 0. 636,800, dated November14, 1899. Application filed June 7,1899. serial No. 719,731. on model.)

To all whom it may concern:

Be it known thatwe, CARL HEROLD and RICHARD RICHARDS, manufacturers,residing at 44 Teile, in the city of Briinn, Empire of Austria Hungary,have invented new and useful Improvementsin Circular Looms; and we dohereby declare the following to bea full, clear, and exact descriptionof the same. This invention relates to improvements in the circularlooms described in the application of Herold and Herold, filed June 25,1898, Serial No. 684,502, patented July 4, 1899, No. 628,093, and refersto (a) the mechanism for forming the shed and (b) the mechanism forbeating up the weft (shuttle-thread) in the Woven fabric.

The circular loom provided with these improvements is illustratedin theaccompanying drawings, as follows:

Figure 1 is a vertical section and elevation of the loom; Fig. 2, avertical section and elevation of a part "of theloom on an enlargedscaleto illustrate more clearly the details, Fig. 3, a sectionalelevation of a modification ofthe mechanism for beating up the weft;Fig. 4, a plan of the-parts shownin Fig. 2; Fig. 5, a side elevation,partly in section, of the driving mechanism; Fig. 6, a side elevation ofportion of the rotating cam for actuating the heaters Fig. 7, a sideview of outer end of heald-carrier on an enlarged scale and partly insection; Fig. 8, an end view of the same; Fig. 9, aside view, partly insection, of the inner end of the heald-carrier; Fig. 10, a plan view ofthe same; Fig. 11, a side view, partly in section, showing roller insection; and Fig.

Motion is imparted to the vertical shaft to from the horizontal shaft aby means of the beveled wheels a a One end of the vertical shaft (1 issupported inthe footstep b and the other end in the collar (1, whichlatter is let into the pedestal or bracket b The bracket b is firmlyscrewed to the center cross rail or beam N, which connects the two beamsb of the frame. The pedestals b of the shaft a are attached to the sameframe. The remainder of the frame consists of two side uprights c, whichare connected at the top by two cross-rails. Each of the latter carriesa head-piece, by which the cloth-rollers 'nected to the plate e".

'r are supported.

The shuttle race-rings m m are formed each of one piece, and theactuation of the.

- two brass rings m m are fixed. A brass spring m rubs against eachofthese rings. The wires m m leadin from the source of current areconnected with the supports m of these contact-spr ngs. rom the rings m'm conducting-Wires m m lead to the successive magnet-coils n. The boss0, fixed to the shaft by nuts 0 0, which carries the electromagnets, isin one piece with the lowest of the cams or eccentrics d for forming theshed.

The arrangement of the eccentrics or cams d for forming the shed is thesame as that described in'Patent No. 628,093, the annular eccentrics orcams (i being placed one above the other and fastened together by boltsor screws (1 passing through them. The wire healds e have their outerends drawn out to engage with or fit over the curved pieces or rodsf.(For these see Fig. 8.) To each of the latter there is a ring or eye rriveted, Fig. 8, which'can be placed upon or over the outer end of thestrong wire (-2 the latter having on it a screw-thread, so that the ringcan be fixed by the two nuts c, Fig; 7. As may be seen from thedrawings, the wire healds e are situated above the wire rods e but theymay equali y well be placed underneath. This wire 6 at its inner end isscrewed into the head e and the head 6 is by means of a stud a con- Thestud is preferably fixed to the head 6 and turns in the plate e Figsjfland 10. The plate 6 carries underneath at both ends rollers e, whichrotate on the studs 6 These rollers run in the grooves of the eccentricd for forming the shed, Figs. 2 and 4, and by their passing from theouter to the inner part of the groove, or the contrary way, impart aradial to-and-fro movement to the wires c and also to the wire healds e,both of which are guidedby the holes g of the casing g by which meansthe shed is produeed. The nut a, forming the top 'of the bolt e preventsthe rollers e and the head 6 from jumping out of the groove e, as theyalmost touch the eccentric d or plate 01' above them. By the plate 6 andhead 6 Fig. 9, being made to turn about each other itis made possiblethat the wire a which is screwed into the latter, remains radial duringall themovements, more particularly while passing from the inner to theouterpart of the groove e of the eccentric d, or vice versa, so that anyjamming or bending of the wire healds is avoided. The

wire here referred to replaces the intermediate piecese of Patent No.628,093, and this 1 arrangement has the advantage over the older onethat the wire healds e", attached to the curved pieces f, are accessiblefrom the outside.

The arrangement of two rollers e on both sides of the wire 6 is for thepurpose of preventing the rollers from jamming in the grooves e of theeccentric.

The shuttle s is shown in side elevation in Fig. 12 and in end elevationin Fig. 2. It has at each end an upright roller .9, which runs incontact with the race-rings m m. Projecting from its outer side are twoshort studs, on which are mounted wheels 5 resting and running upon thereeds h The rollers 5' lie in the same radial lines as the cores n ofthe electromagnets.

The heating up of the weft-thread which has been carried through by theshuttle is not now effected by the reed-segments of Patent No. 628,093,but by boaters which are placed near to 'the apex of the shed, whichhave the advantage, com pared with the movement cf the segments in saidapplication, that they have a much shorter distance to traverse inmoving from their position of rest into the dotted-line position forbeating up the weft. In order to make this arrangement practicable, thethread issuing from the shuttle 3 must be brought near to the apex ofthe shed, and for this purpose there projects from the upper side of theshuttle a fixed wire 0, Figs. 1, 2, and 12, which reaches nearly to theapex of the shed and has an eye 0 for the thread, through which the weftas it comes off the cop or spool is led.

The new arrangement for beating up the weft consists of a grooved ringrevolving with the shaft (1, the groove it being formed with severalsharp bends, int-o which project the arms in of the heaters h, whichswing or oscillate on a closed ring h. The ring it is supported bycarriers 0, fixed to the beamring 0, and an annular weight or ring 0 islaid upon the heaters h, which may, if desired, be fixed against anelastic packing a on the beam-ring 0. This weight serves to hold theheaters down on the ring 7?. For the purpose of obtaining a surer guidefor the heaters it they are guided by vertical slits in the cylinders 0As soon as the shuttles .9, carried around by the electromagnets n, havepaid oil a portion of the thread the heaters by reason of the arm 72.passing into the sharp bend it, Figs. 1, 2, and 6, strike the paid-offweft underneath, push it upfrom below, and finally attain thedotted-line position, Fig. 2, where they press the weft to the finishedcloth and then return to their previous position. It should benoted-that the number of sharp bends 7c in the cam 70 corresponds withthe number of shuttles s.

In the modification illustrated in Fig. 3 for beating up the weft theform of the heaters h is such that in either the full-line or dottedlineposition they are constantly between the threads of both the inner andthe outer part of the shed, by which the possibility of the heatersfailing to pass between the threads is avoided. To at'tain'this object,the beaters h are prolonged int-o curved ends h so that in the full-lineposition these curved ends play between two particular threads or groupsof threads of the outer portion of the shed and only leave these whenthe particular point if of the same beater which has to beat up the wefthas entered between the two threads or groups of threads. In thisarrangement the ring it is supported in'the holes of the carriers c,which are fixed on the inner side of the shuttle race-ring m.

In operation the circular loom works as follows: The warp-threads passfrom the warpbeams 15 over the rail or beam t and crossrings 15 to thehealds e and are then drawn through the stationary reed 71. The shuttless,which are brought in to the shed thus formed, are carried around in acircle by the rotating electromagnets n and introduce the weftthreads.\Vhen a given length of the weftthread has been carried into the shedand the magnets, with the shuttles, have passed, the arm h enters theinwardly-inclined bond 70 of the groove or path 75 of the revolving cam70*, whereby the lever h is moved about its central pivot h and beatsthe weft upward into the cloth. As soon as the weft is beaten up thelevers h resume their original position, owing to the arm h reenteringthe concentric part of the groove or path k of the cam k Theheddle-catns (1 open the shed before each shuttle and change it afterthe shuttle has passed, this movement being effected by thecorresponding curves in the grooves e.

Having thus described our invention, what provided with holes, radialwires sliding in said holes and projecting beyond the framing, rodssecured to the outer ends of said wires, healds attached to the rods andlrunning in radially through holes in the framing, and rotatahle camsengaging with the inner ends of the wires.

2. In a circular loom, mechanism for forming the shed, comprising astationary framing provided with guide-holes, radial wires sliding insaid holes, a ring secured to the outer end of each wire, a rod attachedto the ring transverse to the wire, radial healds having their outerends attached to the rod and their inner ends passing freely through theguide-holes, and. rotatable superposed cams engaging with the inner endsof the wires,

and between which the ends of the healds can enter.

3. In a circular loom, the combination with rotatable cams havingeccentric grooves, of radial heald-carrying wires, having at their innerends pivoted plates, and a roller at each end of said plates engagingwith said grooves.

4. In a circular loom, the combination with a shuttle having an uprightarm for guiding the thread, of pivoted heaters placed above the samenear the apex of the shed,'a rotata ble ring having a cam-grooveengaging with the inner ends of said heaters, and a slotted casing forguiding the heaters.

5. In a circular loom, the combination with stationary casings havingupright slots, of a ring supported between the casings, radial beaterspivoted on said ring and projecting at each end through said slots, arotatable cam-ring engaging with the inner ends of said 4 boaters, andan annular weight resting on said beatersabove the pivot-ring.

I 6. In a circular loom, aweft-beater having an arm h provided with acurved extension h and a point hi, whereby some portion of the beaterwill always be between both threads Witnesses:

W. DRABAKOIJRIL, A. OREELL.

